Inventor · disambiguated record
Karl William Yost
Also filed as: YOST KARL · YOST KARL W · YOST KARL WILLIAM
24 granted patents·2 pending applications·358 citations·filing 1991–2025
96Inventor score
Files withSEVENSON ENVIRONMENTAL SERVICE11HMR SOLUTIONS INC6YOST BROTHERS LLC3WILDER CONSTRUCTION COMPANY2YOST KARL WILLIAM2
Top patents by PatentIndex Score
26 records- 0190US5397478AFixation and stabilization of chromium in contaminated materialsSEVENSON ENVIRONMENTAL SERVICE·Filed 1993·Granted Mar 14, 1995·78 cites·15 claims
- 0290US5193936AFixation and stabilization of lead in contaminated soil and solid wasteMAECORP INC·Filed 1991·Granted Mar 16, 1993·81 cites·20 claims
- 0389US11680001B2Systems and methods for treating acidity, heavy metals, and solids in acid mine drainage and other aqueous fluidsYOST KARL WILLIAM·Filed 2019·Granted Jun 20, 2023·7 cites·18 claims
- 0483US5527982AFixation and stabilization of metals in contaminated materialsSEVENSON ENVIRONMENTAL SERVICE·Filed 1993·Granted Jun 18, 1996·38 cites·31 claims
- 0582US5732367AReduction of leachability and solubility of radionuclides and radioactive substances in contaminated soils and materialsSEVENSON ENVIRONMENTAL SERVICE·Filed 1996·Granted Mar 24, 1998·24 cites·16 claims
- 0682US5569155AFixation and stabilization of metals in contaminated materialsSEVENSON ENVIRONMENTAL SERVICE·Filed 1995·Granted Oct 29, 1996·32 cites·30 claims
- 0781US11383982B2Reagent system for remediating mine waste and other solid waste contaminated with heavy metalsHMR SOLUTIONS INC·Filed 2018·Granted Jul 12, 2022·1 cites·5 claims
- 0879US5916123AFixation and stabilization of metals in contaminated soils and materialsSEVENSON ENVIRONMENTAL SERVICE·Filed 1997·Granted Jun 29, 1999·20 cites·28 claims
- 0978US11535516B2Method and reagent system for remediating mine waste and other solid waste contaminated with heavy metalsHMR SOLUTIONS INC·Filed 2022·Granted Dec 27, 2022·0 cites·10 claims
- 1077US6309337B1Method of forming an insoluble phosphate mineral speciesSEVENSON ENVIRONMENTAL SERVICE·Filed 2000·Granted Oct 30, 2001·12 cites·17 claims
- 1176US12227439B2Systems to treat PFAS and other persistent organic compounds and oxidizable matter in aqueous fluidsYOST BROTHERS LLC·Filed 2020·Granted Feb 18, 2025·1 cites·12 claims
- 1275US12053809B2Reagent system for treating mercury-contaminated materialHMR SOLUTIONS INC·Filed 2021·Granted Aug 6, 2024·0 cites·4 claims
- 1373US6139485AFixation and stabilization of metals in contaminated soils and materialsSEVENSON ENVIRONMENTAL SERVICE·Filed 1999·Granted Oct 31, 2000·15 cites·36 claims
- 1472US11697043B2Method and reagents for treating materials contaminated with mercury, PFAS, or other contaminantsHMR SOLUTIONS INC·Filed 2020·Granted Jul 11, 2023·1 cites·14 claims
- 1569US11059008B2Revolving chamber oscillation mixing devices and associated methodsALEXANDER RICHARD W·Filed 2018·Granted Jul 13, 2021·1 cites·21 claims
- 1667US7077602B2Method and system for containment, such as a containment cap for solid waste constructed of modified asphaltWILDER CONSTRUCTION COMPANY·Filed 2005·Granted Jul 18, 2006·2 cites·12 claims
- 1767US5994608AReduction of leachability and solubility of radionuclides and radioactive substances in contaminated soils and materialsSEVENSON ENVIRONMENTAL SERVICE·Filed 1997·Granted Nov 30, 1999·12 cites·40 claims
- 1867US2024173587A1Method and reagents for treating materials contaminated with mercury, pfas, or other contaminantsHMR SOLUTIONS INC·Filed 2023·Application pending·0 cites
- 1966US11724291B2Closure methods for minesYOST BROTHERS LLC·Filed 2021·Granted Aug 15, 2023·0 cites·18 claims
- 2066US10960444B2Closure methods for minesYOST KARL WILLIAM·Filed 2019·Granted Mar 30, 2021·0 cites·17 claims
- 2165US2025145506A1Systems to treat pfas and other persistent organic compounds and oxidizable matter in aqueous fluidsYOST BROTHERS LLC·Filed 2025·Application pending·0 cites
- 2264US10926308B2Method and reagent system for treating mercury-contaminated materialHMR SOLUTIONS INC·Filed 2018·Granted Feb 23, 2021·0 cites·21 claims
- 2364US6291736B1Reduction of leachability and solubility of radionuclides and radioactive substances in contaminated soils and materialsSEVENSON ENVIRONMENTAL SERVICE·Filed 1999·Granted Sep 18, 2001·10 cites·19 claims
- 2461US6258018B1Fixation and stabilization of metals in contaminated soils and materialsSEVENSON ENVIRONMENTAL SERVICE·Filed 1999·Granted Jul 10, 2001·15 cites·41 claims
- 2560US6635796B2Reduction of leachability and solubility of radionuclides and radioactive substances in contaminated soils and materialsSEVENSON ENVIRONMENTAL SERVICE·Filed 2001·Granted Oct 21, 2003·7 cites·31 claims
- 2654US7404693B2Method and system for a containment system, such as a seamless containment cap for solid waste constructed of polymer-modified asphaltWILDER CONSTRUCTION COMPANY·Filed 2006·Granted Jul 29, 2008·1 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →